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Claims of Lindt Cafe hostage release plan

The psychiatrist who advised police negotiators during the Sydney siege remains adamant Man Haron Monis was about to release a hostage minutes before the stand-off at the Lindt Cafe came to its deadly end.

The inquest into the December 2014 siege in Sydney's Martin Place has also heard that despite having committed an overt act of violence, Monis was not in a "killing frame of mind" during the 17-hour ordeal.

But claims from the forensic psychiatrist that Monis had agreed to a hostage release were on Wednesday called into question by counsel assisting the coroner.

The psychiatrist, who cannot be named for legal reasons, told the inquest that at about 2.03am, at about the time a group of hostages escaped, he was watching and waiting for one to be released.

"It was happening," he said.

At about the same time, when Monis took two hostages with him to check the side door of the cafe, another hostage, Jarrod Morton-Hoffman, led a group out of the cafe.

Monis was killed in a hail of bullets when police stormed the Martin Place building at about 2.13am, just after he had shot dead cafe manager Tori Johnson.

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At about 2.16am, hostage Katrina Dawson was discovered lying face down under tables and chairs in a corner of the cafe, and found to have a pulse. She later died, having been struck by police bullet fragments.

The claims of a deal to release a hostage have not been heard before at the inquest.

The psychiatrist, under questioning from counsel assisting the coroner, Jason Downing, said he had recorded his recollection of events on a dictaphone the morning after the siege.

Mr Downing: "Your recollection is that there was a call, you believe, directly to Matt (the primary negotiator) where someone within the stronghold conveyed that was Monis' desire?"

Psychiatrist: "That's my recall, yes."

Mr Downing: "I'm suggesting to you that the idea that literally someone was at the door about to come out and that negotiators were on the phone to the stronghold discussing that, that didn't occur."

Psychiatrist: "Well, it doesn't accord with my recollection but if those are the facts, those are the facts. But I don't believe them to be."

The same psychiatrist said he did not believe Monis was in a killing frame of mind when he took control of the cafe.

"The difference is if one is in a frame of mind to kill people, one doesn't behave towards them by feeding them or saying to an old man `don't worry, you don't need to hold the banner up, you go and sit down over there'."

It has also been revealed that Monis' blood was spattered across chairs that were riddled with holes after police stormed the cafe.

Lawyers for the two officers from the Tactical Operations Unit, who fired 22 shots at Monis as they entered the building, have requested un-redacted copies of photographs attached to a report from a ballistics expert that show the immediate aftermath of the siege.

"The redactions were blacked out areas on chairs, for example, which apparently had blood on them and it was thought that, I think it's Mr Monis' blood probably," Tim Watts, counsel assisting the TOU member known as "Officer B", told the inquest.